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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on medical software development involving a Windows 11 desktop application using .NET, C# and WPF. Responsibilities include maintaining and developing the app, designing safety-critical features, creating custom system images, testing, and preparing documentation for certification. Required skills cover MVVM pattern, Git, and English communication.
from: 13 July 2026
to: 12 August 2026
salary not specifiedB2B contract (full-time)
salary not specifiedcontract of employment
Offer parameters
level:senior
working mode:remote • hybrid • full office
Białystok, Centrum
Requirements
Expected technologies
.NET
C#
WPF
Model-View-ViewModel (MVVM)
Git
Our requirements
- At least 5 years of commercial experience in software development using .NET and C#
- Strong expertise in WPF and desktop application development
- Practical experience with the MVVM architectural pattern
- Experience working with version control systems (Git) and software development lifecycle tools
- Good command of English, enabling effective communication in an international environment
- Residency in Poland
Optional
- Knowledge of regulatory requirements within the medical industry or other highly regulated sectors
- Experience supporting product certification processes or preparing compliance-related documentation
Your responsibilities
- Developing and maintaining a desktop application built with .NET, C#, and WPF for the Windows 11 platform
- Designing and implementing new features in line with business requirements and quality standards applicable to safety-critical solutions
- Creating and configuring customized Windows 11 system images to support application deployment and operation
- Preparing, executing, and analyzing functional and technical tests to ensure the highest quality of the solution
- Collaborating on technical and regulatory documentation required for product certification processes
About the project
We are looking for a Senior .NET WPF Developer to join a team delivering a project in the medical technology domain focused on developing advanced software solutions for healthcare-related devices. In this role, you will contribute to the development of a Windows 11 desktop application and play a key part in building and enhancing core product functionalities. The project involves working on solutions with high-quality, safety, and compliance requirements, making it an excellent opportunity for professionals who want to apply their .NET and WPF expertise to a product that has a real impact on the quality and safety of technologies used in medical environments.
What we offer
- Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
- Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
- We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
- Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
- Comfortable workplace – class A offices or remote work
- Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
- PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
- Investment in your growth – meetups, webinars, training platform and technology blog – you choose
- Fantastic atmosphere created by all Sii Power People
Recruitment stages
- 1.Send your CV
- 2.Talk to us about your expectations
- 3.Learn more about our projects and choose the best
- 4.Start your adventure with Sii!
Sii Sp. z o.o.
Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 300 professionals and implement projects in a variety of industries for clients from many countries around the world. The Great Place to Work title, won 10 times in a row, proves that at Sii, we create a friendly work environment.
Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.
This is how we work
Senior .NET WPF Developer (f/m/x)
I apply to:
Sii Sp. z o.o.
Białystok, Centrum
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